LLM Engineer

European Tech Recruit; Donostia/San Sebastián; On-site; EUR 60,000 - 90,000; Full time

Benefits offered by this job

Indefinite contract with equal-pay guarantee

Full Work Visa sponsorship and relocation support

Hybrid working and flexible hours

Private health insurance

Dedicated educational budget

Job summary

European Tech Recruit is seeking a Mid/Senior LLM Engineer in Donostia/San Sebastián for a hybrid role within a leading Quantum Software scale-up. You will design and innovate techniques to improve LLMs and fine-tune Transformers for exceptional performance. The ideal candidate should have a strong background in AI, experience with deep learning, and be proficient in relevant tools.

This role offers an indefinite contract, full visa sponsorship, flexible hours, and private health insurance.

Qualifications

• 2+ years experience hands-on with Transformer models and deep learning.
• 5+ years for Senior including Computer Vision experience.
• Strong understanding of GPU architectures and AWS cloud deployment.

Responsibilities

• Design techniques to compress Large Language Models using quantum-inspired technologies.
• Fine-tune and optimise Transformers for accuracy and efficiency.
• Evaluate GPU architectures and deploy high-performance AI solutions.
• Mentor junior talent and contribute to cutting-edge research.

Skills

Expert Python

PyTorch

HuggingFace (Transformers/Accelerate)

Docker

GPU architectures

AWS cloud deployment

Fluent English

Education

MSc or PhD in AI, CS, or related quantitative field

Job description

LLM Engineer (Mid & Senior Levels) | AI / Quantum Computing Scale-up

Location: San Sebastian, Spain (Hybrid)

Work at the frontier of deep-tech with the EU’s leading Quantum Software scale-up. Recognised as a Global Top 100 AI company, my client is leveraging quantum-inspired algorithms to solve the most complex challenges in Finance, Energy, and Manufacturing.

We are looking engineers who don't just "use" LLMs, but understand how to strip them down, compress them, and optimise them for world-class performance.

The Role

• Innovate: Design new techniques to compress Large Language Models using quantum-inspired technologies.
• Scale: Fine-tune and optimise Transformers for enhanced accuracy, robustness, and efficiency.
• Architect: Evaluate GPU architectures and deploy high-performance AI solutions in cloud and HPC environments.
• Lead: Act as a domain expert, mentoring junior talent and contributing to cutting-edge research.

Technical Requirements

• Education: MSc or PhD in AI, CS, or a related quantitative field.
• Experience (Mid): 2+ years hands-on with Transformer models and deep learning.
• Experience (Senior): 5+ years, including experience with Computer Vision or broader Deep Learning.
• Tooling: Expert Python, PyTorch, HuggingFace (Transformers/Accelerate), and Docker.
• Systems: Strong understanding of GPU architectures and AWS cloud deployment.
• Soft Skills: Fluent English; ability to communicate complex technical concepts to global stakeholders.

Preferred Extras

• Research publications in Deep Learning.
• Experience with Inference/Deployment (TensorRT, vLLM).
• Building and evaluating RAG systems or non-LLM DL applications (Audio/Signal Processing).

The Package

• Security: Indefinite contract with an equal-pay guarantee.
• Relocation: Full Work Visa sponsorship and relocation support provided.
• Balance: Hybrid working, flexible hours, and private health insurance.
• Growth: Dedicated educational budget and a high-velocity R&D culture.

Interested?

Apply directly through LinkedIn, or send your CV to [e-mail]

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